| Castanet-Tolosan to Kalisz | 955.65 mi (1,537.97 km) |
| Castanet-Tolosan to Kamien Pomorski | 938.97 mi (1,511.12 km) |
| Castanet-Tolosan to Kamienna Gora | 845.28 mi (1,360.34 km) |
| Castanet-Tolosan to Karczew | 1,085.79 mi (1,747.42 km) |
| Castanet-Tolosan to Kartuzy | 1,059.62 mi (1,705.29 km) |
| Castanet-Tolosan to Katowice | 946.29 mi (1,522.91 km) |
| Castanet-Tolosan to Kedzierzyn-Kozle | 915.60 mi (1,473.52 km) |
| Castanet-Tolosan to Kepno | 936.00 mi (1,506.34 km) |
| Castanet-Tolosan to Ketrzyn | 1,155.89 mi (1,860.23 km) |
| Castanet-Tolosan to Kety | 945.06 mi (1,520.93 km) |
| Castanet-Tolosan to Kielce | 1,027.89 mi (1,654.23 km) |
| Castanet-Tolosan to Kielczow | 900.76 mi (1,449.63 km) |
| Castanet-Tolosan to Klobuck | 961.27 mi (1,547.01 km) |
| Castanet-Tolosan to Klodzko | 856.95 mi (1,379.13 km) |
| Castanet-Tolosan to Kluczbork | 935.30 mi (1,505.22 km) |
